1. Deptartment of Geosciences Pennsylvania State University State College PA USA
2. Lamont‐Doherty Earth Observatory of Columbia University Palisades NY USA
3. Now at School of Earth and Sustainability Northern Arizona University Flagstaff AZ USA
4. Department of Earth and Environmental Sciences Tulane University of Louisiana New Orleans LA USA
5. Department of Earth Sciences Syracuse University Syracuse NY USA
6. Malawi Geological Survey Department Zomba Malawi
7. Department of Geology University of Dar es Salaam Dar es Salaam Tanzania
8. Geological Survey of Tanzania Dodoma Tanzania